Downloading files from the solr replication Handler

[Eva Lacy]

I downloaded some configuration and data files directly from solr in an
attempt to develop a backup solution.
I noticed there is some characters at the start and end of the file that
aren't in configuration files, I notice the same characters at the start
and end of the data files.
Anyone with any idea how I can download these files without the extra
characters or predict how many there are going to be so I can skip them?